/* roulang page: index */
:root{
  --brand:#3A1F5C;
  --brand-2:#5A3486;
  --action:#22E0B8;
  --action-ink:#0C2A23;
  --accent:#FF6B4A;
  --ink:#170F20;
  --ink-2:#2A1B3D;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --line:#E7E2DA;
  --text:#4A4550;
  --muted:#7A7480;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-pill:999px;
  --shadow-sm:0 8px 24px rgba(30,20,40,.08);
  --shadow-lg:0 14px 32px rgba(30,20,40,.14);
  --space-block:88px;
  --font-sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --bs-primary:#3A1F5C;
  --bs-link-color:#3A1F5C;
  --bs-link-hover-color:#22E0B8;
  --bs-body-color:#4A4550;
  --bs-body-bg:#F6F4EF;
  --bs-border-color:#E7E2DA;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:12px}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--action);text-decoration:none}
h1,h2,h3,h4,h5{margin:0;color:var(--brand);font-weight:800;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

.container{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto}
@media (min-width:768px){.container{padding-left:24px;padding-right:24px}}
@media (min-width:1200px){.container{max-width:1200px}}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:var(--radius-btn);
  padding:13px 24px;font-size:15px;font-weight:700;line-height:1.2;cursor:pointer;text-align:center;
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,background-color .18s ease,color .18s ease;}
.btn:hover{transform:translateY(-2px);filter:brightness(1.06)}
.btn:active{transform:translateY(1px);box-shadow:none}
.btn:disabled{background:#DEDAD3;color:#9C97A0;cursor:not-allowed;transform:none;box-shadow:none}
.btn-brand{background:var(--brand);color:#fff;box-shadow:var(--shadow-sm)}
.btn-brand:hover{color:#fff;box-shadow:var(--shadow-lg)}
.btn-action{background:var(--action);color:var(--action-ink);border-radius:var(--radius-pill);box-shadow:0 8px 20px rgba(34,224,184,.28)}
.btn-action:hover{color:var(--action-ink);box-shadow:0 14px 30px rgba(34,224,184,.34)}
.btn-outline{background:transparent;color:var(--brand);border:1px solid rgba(58,31,92,.35)}
.btn-outline:hover{color:var(--brand);border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,107,74,.16)}
.btn-ghost-light{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.28)}
.btn-ghost-light:hover{color:#fff;border-color:var(--action);background:rgba(34,224,184,.12)}
.btn-lg{padding:16px 32px;font-size:16px}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:1040;background:linear-gradient(180deg,#170F20,#1E1430);border-bottom:1px solid rgba(255,255,255,.08)}
.site-nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;padding:0}
.brand{display:inline-flex;align-items:center;gap:10px}
.brand-mark{width:36px;height:36px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--action),#3AD0C0);color:var(--action-ink);font-size:16px;
  clip-path:polygon(0 0,100% 0,100% 76%,80% 100%,0 100%)}
.brand-text{font-size:19px;font-weight:800;color:#fff;letter-spacing:.5px}
.brand-text span{color:var(--action)}
.nav-links{display:flex;align-items:center;gap:28px;list-style:none}
.nav-link{position:relative;color:rgba(255,255,255,.82);font-size:15px;font-weight:600;padding:6px 0}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--action);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:#fff;font-weight:800}
.nav-link.active::after{transform:scaleX(1);height:3px}
.nav-cta{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.06);color:#fff;align-items:center;justify-content:center;font-size:18px;cursor:pointer}
.nav-toggle:hover{background:rgba(34,224,184,.14);border-color:var(--action)}
@media (max-width:991.98px){
  .nav-toggle{display:inline-flex}
  .site-nav .navbar-collapse{position:fixed;top:68px;left:0;right:0;bottom:0;z-index:1035;overflow-y:auto;
    background:linear-gradient(160deg,#170F20,#2A1B3D);padding:22px 20px 40px;border-top:1px solid rgba(255,255,255,.08)}
  .site-nav .navbar-collapse .nav-links{flex-direction:column;align-items:stretch;gap:4px;margin-top:8px}
  .site-nav .navbar-collapse .nav-link{display:block;padding:14px 4px;font-size:16px;border-bottom:1px solid rgba(255,255,255,.08)}
  .site-nav .navbar-collapse .nav-link::after{display:none}
  .site-nav .navbar-collapse .nav-link.active{color:var(--action)}
  .site-nav .navbar-collapse .nav-cta{margin-top:22px;flex-direction:column;align-items:stretch}
  .site-nav .navbar-collapse .nav-cta .btn{width:100%}
}

/* ---------- Hero ---------- */
.hero{position:relative;color:#fff;overflow:hidden;
  background:linear-gradient(180deg,#170F20 0%,#2A1B3D 100%);padding:72px 0 80px}
.hero::before{content:"";position:absolute;inset:0;
  background-image:linear-gradient(160deg,rgba(23,15,32,.92),rgba(42,27,61,.86)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;opacity:.9}
.hero::after{content:"";position:absolute;inset:0;opacity:.05;
  background-image:radial-gradient(#ffffff 1px,transparent 1px);background-size:8px 8px;pointer-events:none}
.hero .container{position:relative;z-index:2}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.badge-chip{display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.06);color:rgba(255,255,255,.88);font-size:13px;font-weight:600}
.badge-chip i{color:var(--action)}
.hero h1{color:#fff;font-size:clamp(30px,4.6vw,52px);font-weight:800;line-height:1.2;letter-spacing:-.5px}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.78);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-note{margin-top:22px;font-size:13.5px;color:rgba(255,255,255,.6);max-width:560px;line-height:1.75}
.hero-visual{position:relative;padding:10px 0 10px 26px}
.hero-visual img{position:relative;z-index:2;border-radius:16px;box-shadow:0 24px 60px rgba(0,0,0,.42);
  aspect-ratio:4/3;object-fit:cover;width:100%}
.hero-visual::before{content:"";position:absolute;right:-28px;bottom:-26px;width:180px;height:180px;z-index:1;
  background:var(--accent);opacity:.9;clip-path:polygon(16px 0,100% 0,100% calc(100% - 16px),calc(100% - 16px) 100%,0 100%,0 16px)}
.hero-visual::after{content:"";position:absolute;left:0;top:44px;width:74px;height:74px;z-index:1;background:var(--action);
  clip-path:polygon(12px 0,100% 0,100% 100%,0 100%,0 12px);opacity:.85}
@media (max-width:991.98px){
  .hero{padding:44px 0 56px}
  .hero-visual{padding:0;margin-top:14px}
  .hero-visual::before{right:-12px;bottom:-16px;width:120px;height:120px}
  .hero-visual::after{display:none}
  .hero-actions .btn{width:100%}
}

/* ---------- 板块通用 ---------- */
.section{padding:var(--space-block) 0}
.section-alt{background:#FFFFFF}
.section-dark{background:linear-gradient(180deg,#170F20,#2A1B3D);color:rgba(255,255,255,.78)}
.section-head{max-width:720px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-block;font-size:13px;font-weight:800;letter-spacing:1.6px;text-transform:uppercase;
  color:var(--accent);margin-bottom:12px}
.section-title{font-size:clamp(24px,3vw,34px);font-weight:800;position:relative;padding-left:0}
.section-title::before{content:"";display:inline-block;width:14px;height:14px;background:var(--brand);margin-right:12px;
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);vertical-align:middle}
.section-desc{margin-top:16px;font-size:16px;color:var(--muted);line-height:1.85}
.section-dark .section-title{color:#fff}
.section-dark .section-desc{color:rgba(255,255,255,.7)}
.section-dark .section-title::before{background:var(--action)}

.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.text-link{font-size:15px;font-weight:700;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.text-link:hover{color:var(--accent);gap:10px}

/* ---------- 价值四联 ---------- */
.value-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:992px){.value-grid{grid-template-columns:repeat(2,1fr)}}
.value-main{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease}
.value-main:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.value-main img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.value-main-body{padding:26px 26px 30px}
.value-main h3{font-size:22px;margin-bottom:12px}
.value-main p{color:var(--muted);font-size:15px}
.value-main ul{margin-top:18px;display:grid;gap:10px}
.value-main li{display:flex;gap:10px;font-size:15px;color:var(--text)}
.value-main li i{color:var(--action);margin-top:6px;font-size:13px}
.value-mini-wrap{display:grid;gap:20px;align-content:start}
.value-mini{display:flex;gap:18px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 24px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.value-mini:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:rgba(58,31,92,.2)}
.value-icon{flex:0 0 46px;width:46px;height:46px;border-radius:13px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(58,31,92,.08);color:var(--brand);font-size:18px}
.value-mini h3{font-size:18px;margin-bottom:6px}
.value-mini p{font-size:14.5px;color:var(--muted);line-height:1.75}

/* ---------- 截图轮播 ---------- */
.showcase{position:relative}
.showcase .carousel-item img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-card)}
.showcase-frame{position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid rgba(255,255,255,.14)}
.showcase-caption{position:absolute;top:20px;left:20px;z-index:3;max-width:300px;background:var(--brand);color:#fff;
  border-radius:12px;padding:16px 18px;box-shadow:0 12px 30px rgba(0,0,0,.35)}
.showcase-caption h3{color:#fff;font-size:17px;margin-bottom:6px}
.showcase-caption p{font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.8)}
.showcase .carousel-control-prev,.showcase .carousel-control-next{top:50%;bottom:auto;transform:translateY(-50%);
  width:46px;height:46px;border-radius:12px;background:rgba(255,255,255,.92);color:var(--brand);opacity:1;
  display:flex;align-items:center;justify-content:center;font-size:16px;z-index:4}
.showcase .carousel-control-prev{left:16px}
.showcase .carousel-control-next{right:16px}
.showcase .carousel-control-prev:hover,.showcase .carousel-control-next:hover{background:var(--action);color:var(--action-ink)}
.showcase .carousel-indicators{position:static;margin:22px 0 0;display:flex;justify-content:center;gap:10px}
.showcase .carousel-indicators [data-bs-target]{width:28px;height:4px;border-radius:2px;background:rgba(255,255,255,.28);
  border:0;opacity:1;margin:0;transition:width .2s ease,background-color .2s ease}
.showcase .carousel-indicators .active{width:54px;background:var(--action)}
@media (max-width:767.98px){
  .showcase-caption{position:static;max-width:none;margin:0 0 14px;border-radius:12px}
  .showcase .carousel-control-prev,.showcase .carousel-control-next{width:38px;height:38px}
}

/* ---------- 系统要求 ---------- */
.req-card{height:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;
  box-shadow:var(--shadow-sm);transition:box-shadow .2s ease,transform .2s ease}
.req-card:nth-child(2){background:#FBF9F5}
.req-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.req-head{display:flex;align-items:center;gap:14px;margin-bottom:20px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.req-head i{width:44px;height:44px;border-radius:12px;background:rgba(58,31,92,.08);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:18px}
.req-head h3{font-size:19px}
.req-head span{display:block;font-size:13px;color:var(--muted);font-weight:600;margin-top:2px}
.req-list{display:grid;gap:12px}
.req-list li{display:flex;justify-content:space-between;gap:16px;font-size:15px;
  padding-bottom:12px;border-bottom:1px dashed var(--line)}
.req-list li:last-child{border-bottom:0;padding-bottom:0}
.req-list .k{color:var(--muted);flex:0 0 auto}
.req-list .v{color:var(--text);font-weight:600;text-align:right}

/* ---------- 评价墙 ---------- */
.review-wall{display:grid;grid-template-columns:1fr;gap:22px}
@media (min-width:768px){.review-wall{grid-template-columns:1fr 1fr;align-items:start}}
.review-col{display:grid;gap:22px}
@media (min-width:768px){.review-col:first-child{margin-top:26px}}
.review-card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px 24px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease}
.review-card::before{content:"\201C";position:absolute;top:6px;right:20px;font-size:64px;line-height:1;
  font-family:Georgia,serif;color:var(--brand);opacity:.12}
.review-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#fff;font-weight:800;display:inline-flex;align-items:center;justify-content:center;font-size:15px;flex:0 0 44px}
.review-name{font-weight:700;color:var(--brand);font-size:15px}
.review-src{font-size:12.5px;color:var(--muted)}
.stars{display:flex;gap:3px;margin-left:auto}
.stars i{color:var(--accent);font-size:11px}
.review-text{font-size:15px;line-height:1.85;color:var(--text)}
.review-tag{display:inline-block;margin-top:14px;font-size:12.5px;font-weight:700;color:var(--brand);
  background:rgba(58,31,92,.07);border-radius:var(--radius-pill);padding:5px 12px}

/* ---------- 下载区 ---------- */
.download-panel{background:linear-gradient(155deg,#170F20,#2A1B3D);border-radius:24px;padding:48px 40px;
  color:rgba(255,255,255,.8);position:relative;overflow:hidden}
.download-panel::after{content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;background:var(--action);
  opacity:.12;clip-path:polygon(20px 0,100% 0,100% calc(100% - 20px),calc(100% - 20px) 100%,0 100%,0 20px)}
.download-panel h2{color:#fff;font-size:clamp(24px,3vw,32px)}
.download-panel .lead{margin-top:14px;font-size:15.5px;line-height:1.85;max-width:620px;color:rgba(255,255,255,.72)}
.dl-main{display:flex;flex-wrap:wrap;gap:16px;align-items:center;margin-top:30px;position:relative;z-index:2}
.dl-main .btn-lg{padding:18px 38px;font-size:17px}
.dl-note{font-size:13px;color:rgba(255,255,255,.55)}
.dl-grid{display:grid;grid-template-columns:1fr;gap:16px;margin-top:34px;position:relative;z-index:2}
@media (min-width:576px){.dl-grid{grid-template-columns:1fr 1fr}}
@media (min-width:992px){.dl-grid{grid-template-columns:repeat(4,1fr)}}
.dl-item{display:block;padding:20px 20px;border-radius:var(--radius-card);background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.16);color:#fff;transition:transform .2s ease,border-color .2s ease,background-color .2s ease,box-shadow .2s ease}
.dl-item:hover{transform:translateY(-2px);border-color:var(--action);background:rgba(34,224,184,.1);color:#fff;
  box-shadow:0 14px 32px rgba(0,0,0,.28)}
.dl-item .row1{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:800}
.dl-item .row1 i{color:var(--action);font-size:17px}
.dl-item .row2{display:block;margin-top:8px;font-size:13px;color:rgba(255,255,255,.62);line-height:1.7}
@media (max-width:575.98px){.download-panel{padding:34px 22px}.dl-main .btn{width:100%}}

/* ---------- 内容列表 ---------- */
.post-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:768px){.post-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:992px){.post-grid{grid-template-columns:repeat(3,1fr)}}
.post-card{display:flex;flex-direction:column;height:100%;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:rgba(58,31,92,.18)}
.post-cover{display:block;overflow:hidden}
.post-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;transition:transform .3s ease}
.post-card:hover .post-cover img{transform:scale(1.03)}
.post-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.post-cat{align-self:flex-start;font-size:12.5px;font-weight:800;color:var(--brand);background:rgba(58,31,92,.08);
  border-radius:var(--radius-pill);padding:5px 12px;margin-bottom:14px}
.post-title{font-size:18px;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card:hover .post-title{color:var(--brand-2)}
.post-excerpt{font-size:14.5px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);display:flex;align-items:center;
  justify-content:space-between;font-size:13px;color:var(--muted)}
.post-meta i{margin-right:6px}
.post-more{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--brand)}
.post-card:hover .post-more{gap:10px;color:var(--accent)}
.empty-state{text-align:center;padding:60px 24px;background:var(--card);border:1px dashed var(--line);
  border-radius:var(--radius-card)}
.empty-state i{font-size:32px;color:var(--brand);opacity:.4;display:block;margin-bottom:16px}
.empty-state p{color:var(--muted);margin-bottom:20px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:920px;margin:0 auto}
.accordion-item{background:var(--card);border:1px solid rgba(58,31,92,.15);border-radius:var(--radius-card)!important;
  margin-bottom:14px;overflow:hidden}
.accordion-button{display:flex;align-items:center;gap:18px;width:100%;background:var(--card);color:var(--brand);
  font-size:16.5px;font-weight:700;padding:22px 24px;border:0;box-shadow:none!important;line-height:1.6}
.accordion-button .idx{font-size:14px;font-weight:800;color:var(--accent);flex:0 0 auto;letter-spacing:.5px}
.accordion-button::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;background-image:none;
  width:18px;height:18px;margin-left:auto;color:var(--brand);font-size:13px;transition:transform .25s ease}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg);color:var(--accent)}
.accordion-button:not(.collapsed){background:#FBF9F5;color:var(--brand-2)}
.accordion-button:hover{background:#FBF9F5}
.accordion-body{position:relative;padding:4px 24px 24px 56px;font-size:15px;line-height:1.85;color:var(--text)}
.accordion-body::before{content:"";position:absolute;left:24px;top:0;bottom:24px;width:3px;border-radius:2px;background:var(--brand)}
.accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(58,31,92,.3)}

/* ---------- 页脚 ---------- */
.site-footer{background:#1A1224;color:#9C93A8;padding:64px 0 0;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;padding-bottom:44px}
@media (min-width:576px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr}}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px;font-size:15px}
.footer-brand strong{color:#fff;font-size:18px;font-weight:800}
.site-footer p{line-height:1.85;color:#9C93A8}
.footer-title{color:#fff;font-size:15px;font-weight:800;margin-bottom:16px;letter-spacing:.3px}
.footer-links{display:grid;gap:11px}
.footer-links a{color:#9C93A8;font-size:14.5px}
.footer-links a:hover{color:var(--action)}
.footer-contact{display:grid;gap:12px}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;color:#9C93A8;line-height:1.7}
.footer-contact i{color:var(--action);margin-top:5px;font-size:13px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;font-size:13px;color:#7C7390}
.footer-bottom a{color:#7C7390}
.footer-bottom a:hover{color:var(--action)}

/* ---------- 移动吸底条 ---------- */
.mobile-bar{position:fixed;left:0;right:0;bottom:0;z-index:1050;height:56px;display:flex;align-items:center;
  justify-content:space-between;gap:12px;padding:0 16px;background:rgba(23,15,32,.96);border-top:1px solid rgba(255,255,255,.1);
  transform:translateY(110%);transition:transform .28s ease}
.mobile-bar.show{transform:translateY(0)}
.mobile-bar span{color:rgba(255,255,255,.72);font-size:13px}
.mobile-bar .btn{padding:10px 22px;font-size:14px}
@media (min-width:992px){.mobile-bar{display:none}}

@media (max-width:575.98px){
  :root{--space-block:56px}
  .section-head{margin-bottom:30px}
  .download-panel{border-radius:18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --brand:#3A1F5C;
  --brand-soft:#4E2E78;
  --action:#22E0B8;
  --action-deep:#12B893;
  --accent:#FF6B4A;
  --bg-dark-1:#170F20;
  --bg-dark-2:#2A1B3D;
  --bg-light:#F6F4EF;
  --card:#FFFFFF;
  --line:#E7E2DA;
  --text:#4A4550;
  --muted:#7A7480;
  --footer-bg:#1A1224;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-pill:999px;
  --shadow-1:0 8px 24px rgba(30,20,40,.08);
  --shadow-2:0 14px 32px rgba(30,20,40,.14);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.8;color:var(--text);background:var(--bg-light);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--accent)}
button,input,select,textarea{font:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4,h5{margin:0;font-weight:800;line-height:1.3}
p{margin:0}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){.container{padding-left:24px;padding-right:24px}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-nav{min-height:74px;display:flex;align-items:center;gap:16px;position:relative}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;font-size:16px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-soft) 100%);
  color:var(--action);box-shadow:var(--shadow-1);
}
.brand-text{font-size:20px;font-weight:800;letter-spacing:.5px;color:var(--brand)}
.brand-text span{color:var(--accent)}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--brand);font-size:17px;
  align-items:center;justify-content:center;transition:border-color .2s,color .2s;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:28px;list-style:none;margin:0;padding:0}
.nav-links .nav-link{
  position:relative;display:inline-block;padding:8px 0;font-size:15px;font-weight:500;
  color:var(--text);text-decoration:none;transition:color .22s;
}
.nav-links .nav-link::after{
  content:"";position:absolute;left:0;bottom:2px;width:0;height:2px;border-radius:2px;
  background:var(--brand);transition:width .25s ease;
}
.nav-links .nav-link:hover{color:var(--brand)}
.nav-links .nav-link:hover::after{width:100%}
.nav-links .nav-link.active{color:var(--brand);font-weight:700}
.nav-links .nav-link.active::after{width:100%;height:3px}
.nav-cta{flex:0 0 auto}
.btn-action{
  display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:var(--radius-pill);
  background:var(--action);color:#0C2A24;font-size:15px;font-weight:800;border:1px solid transparent;
  box-shadow:0 6px 18px rgba(34,224,184,.28);
  transition:transform .2s,box-shadow .2s,filter .2s;
}
.btn-action:hover{filter:brightness(1.06);transform:translateY(-2px);color:#0C2A24;box-shadow:0 10px 24px rgba(34,224,184,.34)}
.btn-action:active{transform:translateY(1px);box-shadow:0 3px 10px rgba(34,224,184,.22)}
.btn-action:focus-visible{outline:3px solid var(--accent);outline-offset:3px}

@media (max-width:991.98px){
  .site-nav{min-height:66px}
  .nav-toggle{display:inline-flex}
  .site-nav .navbar-collapse{
    position:absolute;left:0;right:0;top:100%;background:#fff;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow-2);
    padding:14px 20px 22px;max-height:calc(100vh - 66px);overflow-y:auto;
  }
  .nav-links{flex-direction:column;align-items:stretch;gap:0}
  .nav-links .nav-link{font-size:16px;padding:14px 2px;border-bottom:1px solid var(--line)}
  .nav-links .nav-link::after{display:none}
  .nav-links .nav-link.active{color:var(--brand)}
  .nav-cta{margin-top:18px}
  .nav-cta .btn-action{width:100%;justify-content:center;padding:14px 24px}
}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:700;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;
}
.btn:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.btn-brand{background:var(--brand);color:#fff;box-shadow:var(--shadow-1)}
.btn-brand:hover{background:var(--brand-soft);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-brand:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(30,20,40,.14)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-1)}
.btn-ghost:active{transform:translateY(1px);box-shadow:none}
.btn-light-ghost{background:transparent;color:#EDE8F3;border-color:rgba(255,255,255,.24)}
.btn-light-ghost:hover{border-color:var(--action);color:var(--action);transform:translateY(-2px)}
.btn-lg{padding:16px 30px;font-size:16px}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;overflow:hidden;color:#fff;padding:40px 0 56px;
  background-image:linear-gradient(140deg,rgba(23,15,32,.90) 0%,rgba(42,27,61,.88) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:8px 8px;
}
.article-hero .container{position:relative;z-index:2}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0 0 26px;padding:0;font-size:13px}
.crumb li{display:flex;align-items:center;gap:8px;min-width:0}
.crumb li+li::before{content:"/";color:rgba(255,255,255,.35)}
.crumb a{color:#B9AFC9;transition:color .2s}
.crumb a:hover{color:var(--action)}
.crumb li[aria-current]{
  color:#EDE8F3;font-weight:600;max-width:100%;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.article-head{max-width:860px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--radius-pill);
  font-size:13px;font-weight:700;color:var(--action);
  background:rgba(34,224,184,.10);border:1px solid rgba(34,224,184,.30);
}
.article-head h1{
  margin:18px 0 16px;font-size:clamp(26px,3.6vw,42px);font-weight:800;line-height:1.24;color:#fff;
}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13.5px;color:#B9AFC9}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--action);font-size:13px}
.article-lead{
  margin-top:22px;padding:16px 20px;border-left:4px solid var(--action);
  border-radius:0 12px 12px 0;background:rgba(255,255,255,.05);
  font-size:15.5px;line-height:1.85;color:#D8D1E2;
}

/* ---------- 正文阅读区 ---------- */
.article-section{padding:48px 0 8px;background:var(--bg-light)}
.article-wrap{
  display:grid;grid-template-columns:minmax(0,1fr);justify-content:center;
  gap:48px;align-items:start;
}
@media (min-width:1200px){
  .article-wrap{grid-template-columns:minmax(0,760px) 200px}
}
.article-main-col{min-width:0}
.article-body{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:38px 42px;box-shadow:var(--shadow-1);
  font-size:16px;line-height:1.9;color:var(--text);overflow-wrap:break-word;
}
@media (max-width:991.98px){.article-body{padding:30px 26px}}
@media (max-width:575.98px){.article-body{padding:24px 18px;border-radius:14px}}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  position:relative;margin:40px 0 16px;padding-left:16px;
  font-size:23px;font-weight:800;line-height:1.45;color:var(--brand);scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--brand);
}
.article-body h3{margin:28px 0 12px;font-size:19px;font-weight:700;color:var(--brand);scroll-margin-top:96px}
.article-body h4{margin:22px 0 10px;font-size:16.5px;font-weight:700;color:var(--brand)}
.article-body p{margin:0 0 18px}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(58,31,92,.32)}
.article-body a:hover{color:var(--accent);text-decoration-color:currentColor}
.article-body ul{margin:0 0 20px;list-style:none}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:8px;height:8px;border-radius:2px;background:var(--brand);
}
.article-body ol{margin:0 0 20px;list-style:none;counter-reset:artlist}
.article-body ol li{position:relative;padding-left:36px;margin-bottom:10px;counter-increment:artlist}
.article-body ol li::before{
  content:counter(artlist,decimal-leading-zero);position:absolute;left:0;top:.22em;
  font-size:13px;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-left:4px solid var(--action);border-radius:0 12px 12px 0;
  background:#F4FBF9;color:#3B4A47;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{max-width:100%;height:auto;border-radius:12px;margin:24px auto;box-shadow:var(--shadow-1)}
.article-body figure{margin:24px 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:10px}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0}
.article-body code{
  padding:2px 7px;border-radius:6px;background:rgba(58,31,92,.07);color:var(--brand);font-size:14px;
}
.table-scroll{
  margin:26px 0;border:1px solid var(--line);border-radius:12px;overflow-x:auto;
  -webkit-overflow-scrolling:touch;
}
.article-body table{width:100%;border-collapse:collapse;font-size:14.5px;min-width:520px}
.article-body thead th{background:rgba(58,31,92,.06);color:var(--brand);font-weight:700;text-align:left}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);vertical-align:top}
.article-body tbody tr:nth-child(even){background:#FAF8F5}
.article-body tbody tr:last-child td{border-bottom:none}

.article-toc{display:none;position:sticky;top:98px}
.article-toc.is-ready{display:block}
@media (max-width:1199.98px){.article-toc{display:none !important}}
.article-toc h4{
  margin:0 0 12px;font-size:12px;font-weight:800;letter-spacing:1.6px;color:var(--muted);
}
.article-toc ol{list-style:none;border-left:2px solid var(--line)}
.article-toc a{
  display:block;margin-left:-2px;padding:7px 0 7px 14px;border-left:2px solid transparent;
  font-size:13.5px;line-height:1.6;color:var(--muted);transition:color .2s,border-color .2s;
}
.article-toc a:hover,.article-toc a.is-active{color:var(--brand);border-left-color:var(--brand)}

/* 空态 */
.empty-state{text-align:center;padding:56px 16px}
.empty-state .state-icon{
  width:66px;height:66px;margin:0 auto 18px;border-radius:20px;display:grid;place-items:center;
  background:rgba(58,31,92,.07);color:var(--brand);font-size:26px;
}
.empty-state h2{margin:0 0 12px;font-size:22px;font-weight:800;color:var(--brand)}
.empty-state h2::before{display:none}
.empty-state p{margin:0 auto 24px;max-width:460px;color:var(--muted);font-size:15px}

/* ---------- 继续了解 ---------- */
.nextstep{padding:56px 0 8px}
.nextstep-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:26px}
.nextstep-head h2{font-size:clamp(22px,2.6vw,30px);color:var(--brand)}
.nextstep-head p{margin-top:8px;font-size:14.5px;color:var(--muted);max-width:620px}
.nextstep-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
@media (max-width:991.98px){.nextstep-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:575.98px){.nextstep-grid{grid-template-columns:1fr}}
.next-card{
  display:flex;flex-direction:column;gap:10px;padding:24px 22px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.next-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(58,31,92,.24)}
.next-card .n-icon{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(58,31,92,.07);color:var(--brand);font-size:17px;
}
.next-card h3{font-size:17px;font-weight:800;color:var(--brand)}
.next-card p{font-size:14px;line-height:1.75;color:var(--muted);flex:1}
.next-card .n-link{font-size:14px;font-weight:700;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.next-card:hover .n-link{color:var(--accent)}

.article-foot{
  margin-top:24px;padding:22px 24px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-1);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.article-foot p{font-size:14.5px;color:var(--muted);margin:0;max-width:520px}
.article-foot .foot-actions{display:flex;flex-wrap:wrap;gap:12px}
@media (max-width:575.98px){
  .article-foot{flex-direction:column;align-items:stretch}
  .article-foot .foot-actions{flex-direction:column}
  .article-foot .btn{width:100%}
}

/* ---------- 底部下载 CTA ---------- */
.download-cta{
  position:relative;overflow:hidden;margin-top:64px;padding:64px 0;
  color:#EDE8F3;background-image:linear-gradient(135deg,var(--bg-dark-1) 0%,var(--bg-dark-2) 100%);
}
.download-cta::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:8px 8px;
}
.download-cta .container{position:relative;z-index:2}
.cta-inner{
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:40px;align-items:center;
}
@media (max-width:991.98px){.cta-inner{grid-template-columns:1fr;gap:28px}}
.cta-inner h2{font-size:clamp(24px,3vw,34px);color:#fff}
.cta-inner h2 em{font-style:normal;color:var(--action)}
.cta-inner p{margin-top:14px;font-size:15.5px;line-height:1.85;color:#C7BED6;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
@media (max-width:575.98px){.cta-actions{flex-direction:column}.cta-actions .btn{width:100%}}
.cta-notes{display:flex;flex-wrap:wrap;gap:10px 12px;margin-top:20px}
.cta-notes span{
  display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:var(--radius-pill);
  font-size:13px;color:#CFC6DE;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.04);
}
.cta-notes i{color:var(--action);font-size:12px}
.cta-figure{
  border-radius:var(--radius-card);overflow:hidden;border:1px solid rgba(255,255,255,.14);
  box-shadow:0 18px 40px rgba(0,0,0,.36);
}
.cta-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);color:#9C93A8;padding:56px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;padding-bottom:40px}
@media (max-width:991.98px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}}
@media (max-width:575.98px){.footer-grid{grid-template-columns:1fr}}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;color:#fff}
.footer-brand strong{font-size:19px;font-weight:800;letter-spacing:.4px}
.site-footer p{line-height:1.85;color:#9C93A8;margin:0}
.footer-title{margin:0 0 16px;font-size:15px;font-weight:800;color:#fff}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:#9C93A8;transition:color .2s,transform .2s}
.footer-links a:hover{color:var(--action)}
.footer-contact{list-style:none;display:flex;flex-direction:column;gap:12px}
.footer-contact li{display:flex;gap:10px;line-height:1.75;color:#9C93A8}
.footer-contact i{color:var(--action);margin-top:4px;font-size:13px;flex:0 0 auto}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  padding:20px 0;border-top:1px solid rgba(255,255,255,.08);font-size:13px;color:#7E7589;
}
@media (max-width:575.98px){.footer-bottom{flex-direction:column;align-items:flex-start;text-align:left}}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --brand:#3A1F5C;
  --brand-soft:rgba(58,31,92,.12);
  --action:#22E0B8;
  --action-dark:#12BFA0;
  --accent:#FF6B4A;
  --dark-1:#170F20;
  --dark-2:#2A1B3D;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --line:#E7E2DA;
  --text:#4A4550;
  --muted:#7A7480;
  --footer-bg:#1A1224;
  --footer-text:#9C93A8;
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --r-img:14px;
  --sh-1:0 8px 24px rgba(30,20,40,.08);
  --sh-2:0 14px 32px rgba(30,20,40,.14);
  --sp-section:88px;
  --sp-section-m:56px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,opacity .2s ease;}
a:hover{color:var(--action-dark);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{color:var(--brand);font-weight:800;line-height:1.25;margin:0;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
.container{max-width:1200px;padding:0 24px;margin:0 auto;}
@media (max-width:767px){.container{padding:0 20px;}}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(23,15,32,.94);
  backdrop-filter:blur(6px);
  border-bottom:1px solid rgba(231,226,218,.12);
}
.site-nav{display:flex;align-items:center;justify-content:space-between;height:72px;flex-wrap:wrap;}
.brand{display:flex;align-items:center;gap:10px;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(140deg,var(--action) 0%,#0FA98C 100%);
  color:#10241E;display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;flex:0 0 auto;
}
.brand-text{font-size:20px;font-weight:800;color:#fff;letter-spacing:.5px;}
.brand-text span{color:var(--action);}
.nav-toggle{
  display:none;background:transparent;border:1px solid rgba(231,226,218,.28);
  color:#fff;width:44px;height:40px;border-radius:10px;font-size:17px;
}
.navbar-collapse{display:flex;align-items:center;flex:1 1 auto;}
.nav-links{display:flex;align-items:center;gap:28px;flex-wrap:wrap;}
.nav-link{
  color:rgba(255,255,255,.82);font-size:15px;font-weight:500;padding:6px 0;
  position:relative;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--action);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:#fff;font-weight:700;}
.nav-link.active::after{transform:scaleX(1);background:var(--accent);height:3px;border-radius:2px;}
.nav-cta{display:flex;align-items:center;gap:12px;}
.btn-action{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--action);color:#10241E;font-weight:800;font-size:15px;
  padding:11px 22px;border-radius:var(--r-pill);border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
  box-shadow:0 6px 18px rgba(34,224,184,.24);
}
.btn-action:hover{filter:brightness(1.06);transform:translateY(-2px);color:#10241E;box-shadow:0 12px 26px rgba(34,224,184,.32);}
.btn-action:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(34,224,184,.2);}
@media (max-width:991px){
  .site-nav{height:auto;padding:12px 0;flex-wrap:wrap;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .navbar-collapse{display:block;width:100%;}
  .navbar-collapse:not(.show){display:none;}
  .nav-links{flex-direction:column;align-items:flex-start;gap:0;padding:14px 0 8px;width:100%;}
  .nav-links li{width:100%;}
  .nav-link{display:block;padding:12px 0;border-bottom:1px solid rgba(231,226,218,.10);font-size:16px;width:100%;}
  .nav-link::after{display:none;}
  .nav-link.active{color:var(--action);}
  .nav-cta{width:100%;padding-bottom:8px;}
  .nav-cta .btn-action{width:100%;justify-content:center;}
}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  padding:76px 0 84px;
  background-image:linear-gradient(100deg,rgba(23,15,32,.94) 0%,rgba(42,27,61,.86) 55%,rgba(23,15,32,.72) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:8px 8px;opacity:.05;
}
.page-hero .container{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:22px;}
.crumb a{color:rgba(255,255,255,.78);}
.crumb a:hover{color:var(--action);}
.crumb i{font-size:10px;opacity:.7;}
.hero-pill{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.6px;
  color:var(--action);border:1px solid rgba(34,224,184,.45);
  background:rgba(34,224,184,.08);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:20px;
}
.page-hero h1{
  color:#fff;font-size:clamp(30px,4.6vw,52px);font-weight:800;line-height:1.2;
  max-width:15em;margin-bottom:20px;
}
.page-hero h1 em{font-style:normal;color:var(--action);}
.hero-lead{font-size:17px;color:rgba(255,255,255,.80);max-width:44em;line-height:1.85;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-badges span{
  font-size:13px;color:rgba(255,255,255,.86);
  border:1px solid rgba(231,226,218,.28);background:rgba(255,255,255,.05);
  padding:6px 14px;border-radius:var(--r-pill);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.btn-primary-solid{
  display:inline-flex;align-items:center;gap:9px;
  background:var(--brand);color:#fff;font-weight:800;font-size:16px;
  padding:14px 30px;border-radius:var(--r-btn);border:1px solid var(--brand);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
  box-shadow:var(--sh-1);
}
.btn-primary-solid:hover{filter:brightness(1.14);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary-solid:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(30,20,40,.12);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:9px;
  background:transparent;color:#fff;font-weight:700;font-size:16px;
  padding:14px 26px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.42);
  transition:transform .2s ease,border-color .2s ease,background-color .2s ease;
}
.btn-ghost:hover{color:var(--action);border-color:var(--action);background:rgba(34,224,184,.08);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
@media (max-width:767px){
  .page-hero{padding:52px 0 60px;}
  .page-hero h1{max-width:100%;}
  .hero-actions .btn-primary-solid,.hero-actions .btn-ghost{width:100%;justify-content:center;}
}

/* ---------- section base ---------- */
.section{padding:var(--sp-section) 0;}
.section-alt{background:#fff;}
@media (max-width:767px){.section{padding:var(--sp-section-m) 0;}}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-kicker{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:1.2px;
  color:var(--accent);text-transform:uppercase;margin-bottom:12px;
}
.sec-head h2{font-size:clamp(24px,3vw,36px);font-weight:800;margin-bottom:14px;}
.sec-head p{color:var(--muted);font-size:16px;}

/* ---------- split block ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.split.reverse .split-media{order:2;}
.split-media{position:relative;}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--sh-1);}
.split-media::before{
  content:"";position:absolute;right:-14px;bottom:-14px;width:120px;height:120px;
  background:var(--action);opacity:.18;z-index:-1;
  clip-path:polygon(0 0,100% 0,100% 100%,16px 100%,0 calc(100% - 16px));
  border-radius:var(--r-card);
}
.split-body h2{font-size:clamp(23px,2.8vw,32px);margin-bottom:16px;}
.split-body p{color:var(--text);margin-bottom:18px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;padding:10px 0;
  border-bottom:1px dashed var(--line);font-size:15.5px;
}
.check-list li:last-child{border-bottom:0;}
.check-list i{color:var(--action-dark);margin-top:5px;font-size:15px;}
.check-list strong{color:var(--brand);}
@media (max-width:991px){
  .split{grid-template-columns:1fr;gap:32px;}
  .split.reverse .split-media{order:0;}
}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;}
.step{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;position:relative;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  clip-path:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,0 100%);
}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(58,31,92,.24);}
.step-num{
  width:38px;height:38px;border-radius:11px;background:var(--brand-soft);
  color:var(--brand);font-weight:800;display:flex;align-items:center;justify-content:center;
  margin-bottom:16px;font-size:16px;
}
.step h3{font-size:19px;margin-bottom:10px;}
.step p{font-size:14.5px;color:var(--muted);line-height:1.75;}
@media (max-width:991px){.steps{grid-template-columns:repeat(2,1fr);}}
@media (max-width:575px){.steps{grid-template-columns:1fr;}}

/* ---------- compare cards ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-card{
  border-radius:var(--r-card);border:1px solid var(--line);padding:32px 28px;background:#fff;
  transition:transform .22s ease,box-shadow .22s ease;
}
.compare-card:nth-child(2){background:#FBFAF6;}
.compare-card:hover{transform:translateY(-2px);box-shadow:var(--sh-1);}
.compare-card .cmp-icon{
  width:46px;height:46px;border-radius:13px;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:18px;
}
.compare-card h3{font-size:21px;margin-bottom:6px;}
.compare-card .cmp-sub{font-size:13.5px;color:var(--muted);margin-bottom:18px;}
.req-list li{
  display:flex;justify-content:space-between;gap:16px;
  padding:11px 0;border-bottom:1px solid var(--line);font-size:15px;
}
.req-list li:last-child{border-bottom:0;}
.req-list span:first-child{color:var(--muted);}
.req-list span:last-child{color:var(--brand);font-weight:700;}
@media (max-width:767px){.compare{grid-template-columns:1fr;}}

/* ---------- points grid + stat badges ---------- */
.points{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.point{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 24px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.point:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(255,107,74,.4);}
.point i{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,107,74,.12);color:var(--accent);font-size:18px;margin-bottom:18px;border:1px solid rgba(255,107,74,.28);
}
.point h3{font-size:19px;margin-bottom:10px;}
.point p{font-size:14.8px;color:var(--muted);}
@media (max-width:991px){.points{grid-template-columns:repeat(2,1fr);}}
@media (max-width:575px){.points{grid-template-columns:1fr;}}

.stat-row{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:44px;
  border-top:1px solid var(--line);padding-top:36px;
}
.stat{text-align:center;}
.stat b{display:block;font-size:26px;color:var(--brand);font-weight:800;}
.stat span{font-size:13.5px;color:var(--muted);}
@media (max-width:767px){.stat-row{grid-template-columns:repeat(2,1fr);gap:26px 16px;}}

/* ---------- notice ---------- */
.notice{
  display:flex;gap:18px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--action);
  border-radius:var(--r-card);padding:24px 26px;box-shadow:var(--sh-1);
}
.notice i{color:var(--action-dark);font-size:20px;margin-top:4px;}
.notice h3{font-size:17px;margin-bottom:8px;}
.notice p{font-size:14.8px;color:var(--muted);}
.quote{
  border-left:4px solid var(--brand);background:#fff;border-radius:var(--r-img);
  padding:20px 24px;color:var(--text);font-size:15.5px;box-shadow:var(--sh-1);
}

/* ---------- faq ---------- */
.faq-list{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  border:1px solid rgba(58,31,92,.15);border-radius:var(--r-card);background:#fff;
  overflow:hidden;transition:box-shadow .22s ease,border-color .22s ease;
}
.faq-item:hover{border-color:rgba(58,31,92,.3);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  background:transparent;border:0;padding:20px 22px;font-size:16.5px;font-weight:700;color:var(--brand);
  cursor:pointer;border-left:3px solid transparent;transition:border-color .2s ease,background-color .2s ease;
}
.faq-q:not(.collapsed){border-left-color:var(--brand);background:rgba(58,31,92,.03);}
.faq-num{font-size:13px;font-weight:800;color:var(--accent);letter-spacing:1px;flex:0 0 auto;}
.faq-q .faq-text{flex:1 1 auto;}
.faq-arrow{font-size:13px;color:var(--muted);transition:transform .25s ease;flex:0 0 auto;}
.faq-q:not(.collapsed) .faq-arrow{transform:rotate(180deg);color:var(--brand);}
.faq-a{padding:0 22px 22px 61px;font-size:15.4px;line-height:1.85;color:var(--muted);}
@media (max-width:575px){
  .faq-q{font-size:15.5px;padding:18px 16px;gap:12px;}
  .faq-a{padding:0 16px 20px 16px;}
}

/* ---------- download band ---------- */
.dl-band{
  background:linear-gradient(120deg,var(--dark-1) 0%,var(--dark-2) 100%);
  border-radius:22px;padding:48px 44px;color:#fff;position:relative;overflow:hidden;
}
.dl-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:radial-gradient(#fff 1px,transparent 1px);background-size:8px 8px;
}
.dl-band h2{color:#fff;font-size:clamp(23px,3vw,32px);margin-bottom:14px;position:relative;z-index:2;}
.dl-band p{color:rgba(255,255,255,.76);max-width:46em;position:relative;z-index:2;}
.dl-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:16px;margin-top:32px;position:relative;z-index:2;}
.dl-btn{
  display:flex;flex-direction:column;gap:6px;justify-content:center;
  border-radius:var(--r-btn);padding:18px 22px;border:1px solid rgba(231,226,218,.26);
  background:rgba(255,255,255,.05);color:#fff;transition:transform .2s ease,border-color .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.dl-btn b{font-size:16.5px;font-weight:800;display:flex;align-items:center;gap:9px;}
.dl-btn span{font-size:13.5px;color:rgba(255,255,255,.7);}
.dl-btn:hover{transform:translateY(-2px);border-color:var(--action);box-shadow:0 0 0 1px rgba(34,224,184,.5);color:#fff;background:rgba(34,224,184,.08);}
.dl-btn:active{transform:translateY(1px);}
.dl-btn.main{background:var(--action);border-color:var(--action);color:#10241E;}
.dl-btn.main b,.dl-btn.main span{color:#10241E;}
.dl-btn.main span{color:rgba(16,36,30,.76);}
.dl-btn.main:hover{filter:brightness(1.06);background:var(--action);border-color:var(--action);}
@media (max-width:991px){.dl-grid{grid-template-columns:1fr 1fr;}.dl-btn.main{grid-column:1 / -1;}}
@media (max-width:575px){.dl-band{padding:34px 22px;border-radius:18px;}.dl-grid{grid-template-columns:1fr;}}

/* ---------- footer ---------- */
.site-footer{background:var(--footer-bg);color:var(--footer-text);padding:68px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand strong{color:#fff;font-size:20px;font-weight:800;letter-spacing:.5px;}
.site-footer p{font-size:14.4px;line-height:1.85;color:var(--footer-text);}
.footer-title{color:#fff;font-size:15.5px;font-weight:800;margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{color:var(--footer-text);font-size:14.4px;}
.footer-links a:hover{color:var(--action);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14.2px;line-height:1.75;margin-bottom:12px;color:var(--footer-text);}
.footer-contact i{color:var(--action);margin-top:5px;font-size:13px;}
.footer-bottom{
  border-top:1px solid rgba(231,226,218,.12);padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13.4px;color:#8B8298;
}
@media (max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;}}
@media (max-width:575px){.footer-grid{grid-template-columns:1fr;}.footer-bottom{flex-direction:column;gap:8px;}}

/* ---------- mobile sticky bar ---------- */
.sticky-dl{
  position:fixed;left:0;right:0;bottom:0;height:56px;z-index:1040;
  background:var(--brand);display:none;align-items:center;justify-content:center;
  transform:translateY(100%);transition:transform .3s ease;
}
.sticky-dl.show{transform:translateY(0);}
.sticky-dl a{color:#fff;font-weight:800;font-size:16px;display:flex;align-items:center;gap:10px;}
@media (max-width:991px){.sticky-dl{display:flex;}}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
  --brand:#3A1F5C;
  --brand-deep:#170F20;
  --brand-mid:#2A1B3D;
  --action:#22E0B8;
  --action-deep:#12B694;
  --accent:#FF6B4A;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --line:#E7E2DA;
  --text:#4A4550;
  --muted:#7A7480;
  --footer-bg:#1A1224;
  --footer-text:#9C93A8;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-pill:999px;
  --radius-input:10px;
  --shadow:0 8px 24px rgba(30,20,40,.08);
  --shadow-hover:0 14px 32px rgba(30,20,40,.14);
  --container:1200px;
  --section-y:88px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--action-deep);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--brand);line-height:1.25;}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
@media (max-width:767px){
  .container{padding:0 20px;}
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#FFFFFF;
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 14px rgba(30,20,40,.05);
}
.site-nav{
  display:flex;
  align-items:center;
  min-height:76px;
  flex-wrap:wrap;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:20px;
  font-weight:800;
  color:var(--brand);
  letter-spacing:.5px;
  white-space:nowrap;
}
.brand:hover{color:var(--brand);}
.brand-mark{
  width:36px;
  height:36px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-mid) 100%);
  color:var(--action);
  border-radius:10px;
  font-size:16px;
  clip-path:polygon(0 0,100% 0,100% 74%,74% 100%,0 100%);
}
.brand-text span{color:var(--accent);}
.nav-toggle{
  margin-left:auto;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  background:#fff;
  border-radius:var(--radius-btn);
  color:var(--brand);
  font-size:18px;
  cursor:pointer;
  transition:border-color .2s ease,color .2s ease;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--action-deep);}
.nav-links{
  display:flex;
  align-items:center;
  gap:28px;
}
.nav-links .nav-link{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  background:none;
  border-radius:0;
}
.nav-links .nav-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  height:3px;
  width:0;
  border-radius:3px;
  background:var(--brand);
  transition:width .25s ease;
}
.nav-links .nav-link:hover{color:var(--brand);}
.nav-links .nav-link:hover::after{width:100%;}
.nav-links .nav-link.active{color:var(--brand);font-weight:700;}
.nav-links .nav-link.active::after{width:100%;}
.nav-cta{display:flex;align-items:center;}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:1px solid transparent;
  border-radius:var(--radius-btn);
  font-weight:700;
  font-size:15px;
  padding:12px 22px;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn:active{transform:translateY(1px);box-shadow:none;}
.btn-action{
  background:var(--action);
  color:#0E2A24;
  border-radius:var(--radius-pill);
  padding:11px 24px;
  box-shadow:0 6px 18px rgba(34,224,184,.28);
}
.btn-action:hover{
  background:#33E9C4;
  color:#0E2A24;
  transform:translateY(-2px);
  box-shadow:0 12px 26px rgba(34,224,184,.34);
}
.btn-brand{
  background:var(--brand);
  color:#fff;
  box-shadow:0 8px 20px rgba(58,31,92,.22);
}
.btn-brand:hover{background:#4A2873;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.btn-ghost{
  background:#fff;
  color:var(--brand);
  border-color:var(--line);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow);}
.btn-lg{padding:16px 32px;font-size:16px;border-radius:14px;}
.btn-block{width:100%;}
@media (max-width:991px){
  .site-nav{min-height:68px;}
  .nav-links{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:14px 0 4px;
  }
  .nav-links .nav-link{
    display:block;
    padding:13px 4px;
    border-bottom:1px solid var(--line);
    font-size:16px;
  }
  .nav-links .nav-link::after{display:none;}
  .nav-links .nav-link.active{color:var(--brand);}
  .nav-cta{padding:16px 0 8px;}
  .nav-cta .btn{width:100%;}
}

/* ============ 分类页头 ============ */
.cat-hero{
  position:relative;
  padding:96px 0 84px;
  background:linear-gradient(120deg,rgba(23,15,32,.94) 0%,rgba(42,27,61,.86) 55%,rgba(58,31,92,.72) 100%),
             url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  color:#fff;
  overflow:hidden;
}
.cat-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:8px 8px;
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2;}
.crumb{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.62);
  margin-bottom:22px;
}
.crumb a{color:rgba(255,255,255,.8);}
.crumb a:hover{color:var(--action);}
.crumb span.sep{color:rgba(255,255,255,.35);}
.cat-hero h1{
  color:#fff;
  font-size:clamp(30px,4.6vw,52px);
  font-weight:800;
  letter-spacing:.5px;
  margin-bottom:18px;
}
.cat-hero h1 em{
  font-style:normal;
  color:var(--action);
  display:inline-block;
  position:relative;
}
.cat-hero .lead{
  max-width:720px;
  font-size:17px;
  color:rgba(255,255,255,.82);
  margin-bottom:28px;
}
.badge-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:32px;
}
.badge-chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:7px 15px;
  font-size:13.5px;
  color:#E9E3F2;
  border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.06);
  border-radius:var(--radius-pill);
}
.badge-chip i{color:var(--action);font-size:12px;}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.hero-actions .btn-ghost{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.36);
}
.hero-actions .btn-ghost:hover{
  background:rgba(255,255,255,.1);
  color:#fff;
  border-color:#fff;
}
@media (max-width:767px){
  .cat-hero{padding:64px 0 58px;}
  .cat-hero .lead{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
}

/* ============ 通用板块 ============ */
.section{padding:var(--section-y) 0;}
.section-soft{background:#FBF9F6;}
.section-dark{
  background:linear-gradient(160deg,var(--brand-deep) 0%,var(--brand-mid) 100%);
  color:#fff;
}
.section-dark h2,.section-dark h3{color:#fff;}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  letter-spacing:1.5px;
  color:var(--accent);
  text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:3px;
  border-radius:2px;
  background:var(--accent);
  display:inline-block;
}
.section-head h2{
  font-size:clamp(24px,3vw,34px);
  font-weight:800;
  margin-bottom:16px;
}
.section-head p{color:var(--muted);font-size:16px;}
.section-dark .section-head p{color:rgba(255,255,255,.74);}

/* ============ 上下交替图文 ============ */
.alt-block{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:56px;
  align-items:center;
  margin-bottom:84px;
}
.alt-block:last-child{margin-bottom:0;}
.alt-block.reverse .alt-media{order:2;}
.alt-block.reverse .alt-copy{order:1;}
.alt-media{
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow);
  background:#fff;
  position:relative;
}
.alt-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--radius-card);
  transition:transform .35s ease;
}
.alt-media:hover img{transform:scale(1.03);}
.alt-media .cap{
  position:absolute;
  left:16px;
  bottom:16px;
  background:#fff;
  color:var(--brand);
  font-size:13px;
  font-weight:700;
  padding:8px 14px;
  border-radius:var(--radius-pill);
  box-shadow:var(--shadow);
}
.alt-copy h3{
  font-size:clamp(20px,2.2vw,24px);
  font-weight:800;
  margin-bottom:14px;
}
.alt-copy > p{color:var(--text);margin-bottom:22px;}
.point-list li{
  position:relative;
  padding-left:26px;
  margin-bottom:12px;
  color:var(--text);
}
.point-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:11px;
  width:9px;
  height:9px;
  border-radius:2px;
  background:var(--brand);
}
.point-list li strong{color:var(--brand);}
@media (max-width:991px){
  .alt-block{grid-template-columns:1fr;gap:28px;margin-bottom:64px;}
  .alt-block.reverse .alt-media,
  .alt-block.reverse .alt-copy{order:0;}
}

/* ============ 功能对照卡 ============ */
.compare-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.compare-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:34px 30px;
  box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease;
  position:relative;
  overflow:hidden;
}
.compare-card:nth-child(2){background:#F4F0FA;border-color:#DCD2EC;}
.compare-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.compare-card .cc-head{
  display:flex;
  align-items:center;
  gap:14px;
  margin-bottom:20px;
}
.cc-icon{
  width:48px;
  height:48px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:14px;
  background:var(--brand);
  color:#fff;
  font-size:19px;
  flex:0 0 auto;
}
.compare-card:nth-child(2) .cc-icon{background:var(--accent);}
.cc-head h3{font-size:20px;margin-bottom:2px;}
.cc-head .sub{font-size:13px;color:var(--muted);}
.compare-card ul{margin-top:6px;}
.compare-card ul li{
  position:relative;
  padding:10px 0 10px 26px;
  border-bottom:1px dashed var(--line);
  color:var(--text);
  font-size:15.3px;
}
.compare-card ul li:last-child{border-bottom:0;}
.compare-card ul li::before{
  content:"\f00c";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  left:0;
  top:12px;
  font-size:11px;
  color:var(--action-deep);
}
.compare-note{
  margin-top:26px;
  padding:16px 20px;
  border-left:4px solid var(--accent);
  background:#FBF9F6;
  border-radius:0 12px 12px 0;
  color:var(--muted);
  font-size:14.5px;
}
@media (max-width:991px){
  .compare-grid{grid-template-columns:1fr;}
  .compare-card{padding:28px 24px;}
}

/* ============ 功能组卡片 ============ */
.module-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.module-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  height:100%;
}
.module-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#DCD2EC;}
.module-card .thumb{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-card) var(--radius-card) 0 0;
}
.module-card .thumb img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform .35s ease;
}
.module-card:hover .thumb img{transform:scale(1.03);}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  font-size:12.5px;
  font-weight:700;
  border-radius:var(--radius-pill);
  background:rgba(58,31,92,.08);
  color:var(--brand);
}
.thumb .tag{
  position:absolute;
  left:14px;
  top:14px;
  background:rgba(255,255,255,.94);
}
.module-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.module-body h3{font-size:19px;margin-bottom:10px;}
.module-body p{color:var(--muted);font-size:15px;margin-bottom:18px;flex:1;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:700;
  font-size:14.5px;
  color:var(--brand);
}
.link-arrow i{transition:transform .2s ease;font-size:12px;}
.link-arrow:hover i{transform:translateX(4px);}
@media (max-width:991px){
  .module-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:575px){
  .module-grid{grid-template-columns:1fr;}
}

/* ============ FAQ ============ */
.faq-list .accordion-item{
  background:var(--card);
  border:1px solid rgba(58,31,92,.15);
  border-radius:var(--radius-card);
  margin-bottom:14px;
  overflow:hidden;
}
.faq-list .accordion-item:last-child{margin-bottom:0;}
.faq-list .accordion-button{
  display:flex;
  align-items:center;
  gap:16px;
  width:100%;
  padding:20px 22px;
  background:#fff;
  color:var(--brand);
  font-size:16.5px;
  font-weight:700;
  line-height:1.6;
  border:0;
  box-shadow:none;
  text-align:left;
}
.faq-list .accordion-button:not(.collapsed){
  background:#FBF9F6;
  color:var(--brand);
  box-shadow:inset 3px 0 0 var(--brand);
}
.faq-list .accordion-button:focus{box-shadow:none;border-color:transparent;}
.faq-list .acc-num{
  flex:0 0 auto;
  width:34px;
  height:34px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  background:rgba(58,31,92,.08);
  color:var(--brand);
  font-size:13px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
}
.faq-list .accordion-button:not(.collapsed) .acc-num{background:var(--accent);color:#fff;}
.faq-list .accordion-button::after{
  background-image:none;
  content:"\f078";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:13px;
  width:auto;
  height:auto;
  margin-left:auto;
  color:var(--brand);
  transition:transform .25s ease;
}
.faq-list .accordion-button:not(.collapsed)::after{transform:rotate(180deg);}
.faq-list .accordion-body{
  padding:4px 22px 24px 72px;
  color:var(--text);
  font-size:15.5px;
  line-height:1.85;
  background:#FBF9F6;
}
@media (max-width:575px){
  .faq-list .accordion-button{font-size:15.5px;padding:16px 16px;gap:12px;}
  .faq-list .accordion-body{padding:0 16px 20px 16px;}
}

/* ============ CTA ============ */
.cta-panel{
  background:linear-gradient(150deg,var(--brand-deep) 0%,var(--brand-mid) 62%,rgba(58,31,92,.94) 100%);
  border-radius:24px;
  padding:56px 48px;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.cta-panel::after{
  content:"";
  position:absolute;
  right:-90px;
  top:-90px;
  width:320px;
  height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(34,224,184,.22) 0%,transparent 68%);
  pointer-events:none;
}
.cta-panel .container, .cta-inner{position:relative;z-index:2;}
.cta-panel h2{color:#fff;font-size:clamp(23px,2.8vw,32px);font-weight:800;margin-bottom:14px;}
.cta-panel p{color:rgba(255,255,255,.76);max-width:660px;margin-bottom:30px;}
.cta-actions{
  display:grid;
  grid-template-columns:1.25fr 1fr 1fr;
  gap:16px;
}
.cta-btn{
  display:flex;
  flex-direction:column;
  gap:5px;
  padding:18px 22px;
  border-radius:var(--radius-card);
  border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.06);
  color:#fff;
  transition:transform .2s ease,border-color .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.cta-btn strong{font-size:16px;font-weight:800;display:flex;align-items:center;gap:9px;}
.cta-btn span{font-size:13px;color:rgba(255,255,255,.66);}
.cta-btn:hover{transform:translateY(-2px);border-color:var(--action);background:rgba(34,224,184,.1);color:#fff;box-shadow:0 12px 28px rgba(0,0,0,.22);}
.cta-btn.primary{
  background:var(--action);
  border-color:var(--action);
  color:#0E2A24;
}
.cta-btn.primary span{color:rgba(14,42,36,.72);}
.cta-btn.primary:hover{background:#33E9C4;color:#0E2A24;}
@media (max-width:991px){
  .cta-panel{padding:40px 26px;border-radius:20px;}
  .cta-actions{grid-template-columns:1fr;}
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--footer-bg);
  color:var(--footer-text);
  padding:64px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.4fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:18px;
  font-weight:800;
  margin-bottom:16px;
}
.footer-brand:hover{color:var(--action);}
.footer-brand .brand-mark{width:32px;height:32px;font-size:14px;}
.site-footer p{font-size:14.5px;line-height:1.85;color:var(--footer-text);}
.footer-title{
  color:#fff;
  font-size:15px;
  font-weight:800;
  margin-bottom:18px;
  letter-spacing:.3px;
}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{color:var(--footer-text);font-size:14.5px;}
.footer-links a:hover{color:var(--action);}
.footer-contact{display:flex;flex-direction:column;gap:13px;}
.footer-contact li{
  display:flex;
  gap:10px;
  font-size:14.3px;
  line-height:1.7;
  color:var(--footer-text);
}
.footer-contact i{color:var(--action);margin-top:5px;font-size:13px;flex:0 0 auto;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 26px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:13.5px;
  color:#7E7590;
}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding-top:48px;}
}

/* ============ 移动端吸底条 ============ */
.mobile-dock{
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  height:56px;
  background:#fff;
  border-top:1px solid var(--line);
  box-shadow:0 -6px 20px rgba(30,20,40,.1);
  display:none;
  align-items:center;
  z-index:1040;
  transform:translateY(100%);
  transition:transform .28s ease;
}
.mobile-dock.show{transform:translateY(0);}
.dock-inner{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
.dock-inner .dock-text{display:flex;flex-direction:column;line-height:1.3;}
.dock-inner .dock-text strong{font-size:14.5px;color:var(--brand);}
.dock-inner .dock-text span{font-size:11.5px;color:var(--muted);}
.dock-inner .btn{padding:9px 20px;font-size:14px;}
@media (max-width:991px){
  .mobile-dock{display:flex;}
  body{padding-bottom:56px;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: category4 */
:root{
  --brand:#3A1F5C;
  --brand-2:#57308A;
  --action:#22E0B8;
  --accent:#FF6B4A;
  --ink:#170F20;
  --ink-2:#2A1B3D;
  --bg-soft:#F6F4EF;
  --card:#FFFFFF;
  --line:#E7E2DA;
  --text:#4A4550;
  --muted:#7A7480;
  --r-card:16px;
  --r-btn:12px;
  --r-img:14px;
  --shadow:0 8px 24px rgba(30,20,40,.08);
  --shadow-hover:0 14px 32px rgba(30,20,40,.14);
  --sec:clamp(56px,8vw,88px);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg-soft);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--brand-2)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{color:var(--brand);margin:0 0 14px;line-height:1.25;letter-spacing:.2px}
h1{font-size:clamp(30px,4.6vw,52px);font-weight:800}
h2{font-size:clamp(24px,2.7vw,36px);font-weight:800}
h3{font-size:clamp(18px,1.7vw,22px);font-weight:700}
p{margin:0 0 16px}
ul{margin:0;padding:0;list-style:none}
.container{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto}
@media (min-width:768px){.container{padding-left:24px;padding-right:24px}}
@media (min-width:1200px){.container{max-width:1200px}}
.section{padding:var(--sec) 0}
.section-head{max-width:760px;margin-bottom:36px}
.section-head p{color:var(--muted);margin:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:2px;
  color:var(--brand-2);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--accent)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:linear-gradient(90deg,#170F20 0%,#2A1B3D 100%);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.site-nav{min-height:72px;display:flex;align-items:center;position:relative}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;flex-shrink:0}
.brand:hover{color:#fff}
.brand-mark{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--action),#12B694);color:#0E2A24;font-size:17px;
  box-shadow:0 6px 18px rgba(34,224,184,.28);
}
.brand-text{font-size:20px;font-weight:800;letter-spacing:.5px}
.brand-text span{color:var(--action)}
.nav-toggle{
  margin-left:auto;width:44px;height:44px;border-radius:11px;
  border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);
  color:#fff;font-size:18px;display:grid;place-items:center;cursor:pointer;
  transition:background-color .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:rgba(255,255,255,.14)}
.nav-toggle:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.nav-links{display:flex;align-items:center;gap:28px;margin:0}
.nav-links li{list-style:none}
.nav-links .nav-link{
  position:relative;display:inline-block;padding:8px 0;
  color:rgba(255,255,255,.78);font-size:15px;font-weight:600;
  background:transparent;border:0;
}
.nav-links .nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:3px;border-radius:2px;
  background:var(--action);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-links .nav-link:hover,.nav-links .nav-link:focus-visible{color:#fff}
.nav-links .nav-link:hover::after,.nav-links .nav-link:focus-visible::after{transform:scaleX(1)}
.nav-links .nav-link.active{color:#fff;font-weight:800}
.nav-links .nav-link.active::after{transform:scaleX(1)}
.nav-cta{display:flex;align-items:center}
@media (max-width:991.98px){
  .site-nav{flex-wrap:wrap;padding:14px 0}
  .navbar-collapse{
    flex-basis:100%;margin-top:14px;padding-top:16px;
    border-top:1px solid rgba(255,255,255,.1);
  }
  .nav-links{flex-direction:column;align-items:stretch;gap:4px}
  .nav-links .nav-link{display:block;padding:13px 4px;font-size:16px;border-bottom:1px solid rgba(255,255,255,.07)}
  .nav-links .nav-link::after{display:none}
  .nav-links .nav-link.active{color:var(--action)}
  .nav-cta{margin-top:16px}
  .nav-cta .btn{width:100%;justify-content:center}
}
@media (min-width:992px){
  .navbar-collapse{display:flex !important;align-items:center;flex:1}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:var(--r-btn);font-weight:700;font-size:16px;
  padding:14px 26px;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  text-align:left;line-height:1.35;
}
.btn:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.btn-action{background:var(--action);color:#0E2A24;border-radius:999px;padding:12px 24px;box-shadow:0 8px 20px rgba(34,224,184,.26)}
.btn-action:hover{background:#2EEFC6;color:#0E2A24;transform:translateY(-2px);box-shadow:0 14px 30px rgba(34,224,184,.34)}
.btn-action:active{transform:translateY(1px);box-shadow:0 6px 14px rgba(34,224,184,.22)}
.btn-dark{background:var(--brand);color:#fff;box-shadow:var(--shadow)}
.btn-dark:hover{background:#4A2874;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn-dark:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(30,20,40,.16)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line);box-shadow:0 4px 14px rgba(30,20,40,.05)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-ghost:active{transform:translateY(1px);box-shadow:0 3px 10px rgba(30,20,40,.1)}
.btn-lg{padding:18px 34px;font-size:17px}
.btn-block{width:100%}

/* ============ 分类页头 ============ */
.page-hero{
  position:relative;color:#fff;overflow:hidden;
  background-color:#1D1230;
  background-image:linear-gradient(115deg,rgba(23,15,32,.94) 0%,rgba(42,27,61,.86) 55%,rgba(58,31,92,.72) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:calc(var(--sec) * .8) 0 calc(var(--sec) * .72);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.55) 1px,transparent 1px);
  background-size:8px 8px;opacity:.05;pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{color:#fff;margin-bottom:18px;max-width:900px}
.page-hero h1 em{font-style:normal;color:var(--action)}
.page-hero .lead{font-size:17px;color:rgba(255,255,255,.82);max-width:680px;margin-bottom:26px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:20px;padding:0;list-style:none}
.crumb a{color:rgba(255,255,255,.82)}
.crumb a:hover{color:var(--action)}
.crumb li::after{content:"/";margin-left:8px;color:rgba(255,255,255,.35)}
.crumb li:last-child::after{content:""}
.badge-row{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 15px;border-radius:999px;font-size:13px;font-weight:600;
  color:#fff;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.22);
  backdrop-filter:none;
}
.chip i{color:var(--action);font-size:12px}
.hero-note{
  margin-top:26px;padding:16px 20px;border-radius:14px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  color:rgba(255,255,255,.78);font-size:14px;display:flex;gap:12px;align-items:flex-start;max-width:720px;
}
.hero-note i{color:var(--action);margin-top:4px}

/* ============ 时间线 ============ */
.timeline{position:relative;margin-top:8px}
.tl-item{position:relative;padding-left:76px;padding-bottom:26px}
.tl-item:not(:last-child)::before{
  content:"";position:absolute;left:21px;top:48px;bottom:-4px;width:2px;
  background:linear-gradient(180deg,rgba(58,31,92,.22),rgba(58,31,92,.06));
}
.tl-dot{
  position:absolute;left:0;top:0;width:44px;height:44px;border-radius:13px;
  display:grid;place-items:center;font-weight:800;font-size:15px;
  background:#fff;color:var(--brand);border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.tl-item:nth-child(odd) .tl-dot{color:var(--accent);border-color:rgba(255,107,74,.35)}
.tl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 26px;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(58,31,92,.2)}
.tl-card h3{margin-bottom:8px}
.tl-card p:last-child{margin-bottom:0;color:var(--muted);font-size:15px}
@media (max-width:575.98px){
  .tl-item{padding-left:0;padding-top:56px}
  .tl-item:not(:last-child)::before{left:21px;top:48px}
}

/* ============ 图文与引用 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
@media (max-width:991.98px){.split{grid-template-columns:1fr;gap:28px}}
.media-frame{
  border-radius:var(--r-img);overflow:hidden;background:#EDE9E2;
  box-shadow:var(--shadow);position:relative;
}
.media-frame img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.media-frame::after{
  content:"";position:absolute;top:0;right:0;width:56px;height:56px;
  background:linear-gradient(225deg,var(--action) 0%,rgba(34,224,184,0) 72%);
  clip-path:polygon(100% 0,100% 100%,0 0);opacity:.9;
}
.quote{
  border-left:4px solid var(--accent);background:#fff;
  border-radius:0 12px 12px 0;padding:20px 24px;margin:24px 0;
  color:var(--brand);font-size:16.5px;box-shadow:var(--shadow);
}
.quote cite{display:block;margin-top:10px;font-style:normal;font-size:13px;color:var(--muted)}
.check-list li{position:relative;padding-left:24px;margin-bottom:12px;font-size:15.5px}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:3px;
  background:var(--brand);
}
.check-list li:last-child{margin-bottom:0}

/* ============ 卡片网格 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
@media (max-width:991.98px){.grid-3{grid-template-columns:repeat(2,1fr)}}
@media (max-width:575.98px){.grid-3,.grid-2{grid-template-columns:1fr}}
.card-faq{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 26px;box-shadow:var(--shadow);height:100%;
  display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card-faq:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(58,31,92,.2)}
.card-icon{
  width:48px;height:48px;border-radius:13px;display:grid;place-items:center;
  background:rgba(58,31,92,.07);color:var(--brand);font-size:19px;margin-bottom:16px;
}
.card-faq h3{margin-bottom:10px}
.card-faq p{color:var(--muted);font-size:15px;margin-bottom:0}
.card-tag{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:1px;
  color:var(--accent);background:rgba(255,107,74,.1);border-radius:6px;
  padding:4px 10px;margin-bottom:14px;align-self:flex-start;
}

/* ============ 要点清单（反馈准备） ============ */
.prep{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--shadow);
}
.prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media (max-width:991.98px){.prep-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:575.98px){.prep-grid{grid-template-columns:1fr}}
.prep-item{
  border:1px solid var(--line);border-radius:12px;padding:18px 20px;background:#FCFBF8;
  transition:border-color .2s ease,transform .2s ease,background-color .2s ease;
}
.prep-item:hover{border-color:rgba(58,31,92,.28);transform:translateY(-2px);background:#fff}
.prep-item span{display:block;font-weight:700;color:var(--brand);margin-bottom:6px;font-size:15.5px}
.prep-item p{margin:0;font-size:14px;color:var(--muted)}
.prep-item i{color:var(--action);margin-right:8px}

/* ============ FAQ 手风琴 ============ */
.faq-acc .accordion-item{
  border:1px solid rgba(58,31,92,.15);border-radius:14px;
  background:#fff;margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow);
}
.faq-acc .accordion-item:last-child{margin-bottom:0}
.faq-acc .accordion-button{
  background:#fff;color:var(--brand);font-weight:700;font-size:17px;
  padding:20px 24px;box-shadow:none;border:0;display:flex;align-items:center;gap:14px;
  border-radius:0;
}
.faq-acc .accordion-button:not(.collapsed){
  background:#fff;color:var(--brand);
  box-shadow:inset 3px 0 0 0 var(--brand);
}
.faq-acc .accordion-button:focus{outline:3px solid var(--accent);outline-offset:-3px;box-shadow:none;border-color:transparent}
.faq-acc .accordion-button:not(.collapsed):focus{box-shadow:inset 3px 0 0 0 var(--brand)}
.faq-acc .accordion-button::after{
  margin-left:auto;width:14px;height:14px;background-size:14px;
  filter:invert(16%) sepia(28%) saturate(2200%) hue-rotate(238deg) brightness(0.7);
  transition:transform .25s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(180deg)}
.faq-num{
  font-weight:800;font-size:14px;color:var(--accent);
  min-width:30px;letter-spacing:1px;
}
.faq-acc .accordion-body{
  padding:2px 24px 24px 68px;color:var(--text);line-height:1.85;font-size:15.5px;
}
@media (max-width:575.98px){
  .faq-acc .accordion-button{font-size:16px;padding:18px 18px;gap:10px}
  .faq-acc .accordion-body{padding:2px 18px 20px 58px}
}

/* ============ 下载 CTA ============ */
.cta-band{
  position:relative;color:#fff;overflow:hidden;
  background-color:#1D1230;
  background-image:linear-gradient(120deg,rgba(23,15,32,.95) 0%,rgba(42,27,61,.9) 60%,rgba(58,31,92,.8) 100%),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  padding:var(--sec) 0;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:8px 8px;opacity:.05;pointer-events:none;
}
.cta-band .container{position:relative;z-index:2}
.cta-band h2{color:#fff}
.cta-band .cta-sub{color:rgba(255,255,255,.78);max-width:640px;margin-bottom:30px}
.dl-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:8px}
@media (max-width:991.98px){.dl-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:575.98px){.dl-grid{grid-template-columns:1fr}}
.dl-btn{
  display:flex;flex-direction:column;gap:4px;padding:18px 20px;border-radius:14px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);
  color:#fff;font-weight:700;font-size:15.5px;
  transition:transform .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.dl-btn small{font-weight:400;font-size:13px;color:rgba(255,255,255,.65);line-height:1.5}
.dl-btn i{color:var(--action);font-size:18px;margin-bottom:6px}
.dl-btn:hover{background:rgba(255,255,255,.12);border-color:var(--action);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,0,0,.28)}
.dl-btn:active{transform:translateY(1px)}
.dl-btn:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.dl-main{
  background:var(--action);color:#0E2A24;border-color:var(--action);
}
.dl-main small{color:rgba(14,42,36,.72)}
.dl-main i{color:#0E2A24}
.dl-main:hover{background:#2EEFC6;color:#0E2A24;border-color:#2EEFC6}
.dl-main:hover small{color:rgba(14,42,36,.8)}

/* ============ 页脚 ============ */
.site-footer{background:#1A1224;color:#9C93A8;padding:64px 0 0;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:36px}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media (max-width:575.98px){.footer-grid{grid-template-columns:1fr;gap:28px}}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;margin-bottom:14px}
.footer-brand strong{font-size:19px;font-weight:800;letter-spacing:.5px}
.site-footer p{color:#9C93A8;line-height:1.8}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;letter-spacing:.5px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:#9C93A8}
.footer-links a:hover{color:var(--action)}
.footer-contact li{display:flex;gap:10px;margin-bottom:12px;line-height:1.7}
.footer-contact i{color:var(--action);margin-top:4px;font-size:13px}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.09);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#7E758C;
}
@media (max-width:575.98px){.footer-bottom{flex-direction:column;gap:6px;padding-bottom:84px}}

/* ============ 移动端吸底下载 ============ */
.sticky-download{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;height:56px;
  display:none;align-items:center;justify-content:space-between;gap:12px;
  padding:0 16px;background:rgba(23,15,32,.97);
  border-top:1px solid rgba(255,255,255,.12);
  transform:translateY(100%);transition:transform .3s ease;
}
.sticky-download.show{transform:translateY(0)}
.sd-text{display:flex;flex-direction:column;line-height:1.3;min-width:0}
.sd-text strong{color:#fff;font-size:14px;font-weight:800}
.sd-text span{color:#9C93A8;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sticky-download .btn-action{padding:9px 18px;font-size:14px;flex-shrink:0}
@media (max-width:767.98px){.sticky-download{display:flex}}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category3 */
:root{
  --brand:#3A1F5C;
  --brand-soft:rgba(58,31,92,.08);
  --brand-line:rgba(58,31,92,.16);
  --action:#22E0B8;
  --action-ink:#0E2A24;
  --accent:#FF6B4A;
  --dark-1:#170F20;
  --dark-2:#2A1B3D;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --line:#E7E2DA;
  --text:#4A4550;
  --heading:#241A31;
  --muted:#7A7480;
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --shadow:0 8px 24px rgba(30,20,40,.08);
  --shadow-lg:0 14px 32px rgba(30,20,40,.14);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
h1,h2,h3,h4{margin:0;color:var(--heading);font-weight:800;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}
::selection{background:rgba(34,224,184,.35)}

/* 布局容器 */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media(min-width:768px){
  .container{padding-left:24px;padding-right:24px}
}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:linear-gradient(180deg,#170F20 0%,#241536 100%);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.site-nav{display:flex;align-items:center;min-height:72px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,#22E0B8,#10AE8C);color:var(--action-ink);
  font-size:17px;box-shadow:0 6px 16px rgba(34,224,184,.28);
}
.brand-text{font-size:20px;font-weight:800;color:#fff;letter-spacing:.4px}
.brand-text span{color:var(--action)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(255,255,255,.2);background:transparent;color:#fff;
  align-items:center;justify-content:center;font-size:17px;cursor:pointer;
  transition:border-color .2s,color .2s;
}
.nav-toggle:hover{border-color:var(--action);color:var(--action)}
.nav-links{display:flex;align-items:center;gap:28px;margin:0}
.nav-links .nav-link{
  position:relative;display:inline-block;padding:8px 0;
  font-size:15px;font-weight:500;color:rgba(255,255,255,.76);
  transition:color .2s;
}
.nav-links .nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:3px;border-radius:3px;
  background:var(--action);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-links .nav-link:hover{color:#fff}
.nav-links .nav-link:hover::after{transform:scaleX(1)}
.nav-links .nav-link.active{color:#fff;font-weight:700}
.nav-links .nav-link.active::after{transform:scaleX(1)}
.nav-cta{display:flex;align-items:center}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;border-radius:var(--r-btn);font-weight:700;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn:disabled{background:#D9D4CC;color:#8E8892;cursor:not-allowed;box-shadow:none}
.btn-action{
  background:var(--action);color:var(--action-ink);
  border-radius:var(--r-pill);padding:11px 22px;font-size:15px;
  box-shadow:0 8px 20px rgba(34,224,184,.26);
}
.btn-action:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 12px 26px rgba(34,224,184,.34);color:var(--action-ink)}
.btn-action:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(34,224,184,.2)}
.btn-brand{
  background:var(--brand);color:#fff;padding:14px 28px;font-size:16px;
  box-shadow:0 10px 24px rgba(58,31,92,.24);
}
.btn-brand:hover{filter:brightness(1.12);transform:translateY(-2px);box-shadow:0 14px 30px rgba(58,31,92,.3);color:#fff}
.btn-brand:active{transform:translateY(1px);box-shadow:0 6px 14px rgba(58,31,92,.2)}
.btn-ghost{
  background:transparent;color:var(--brand);padding:13px 26px;font-size:15px;
  border:1px solid var(--brand-line);
}
.btn-ghost:hover{border-color:var(--brand);transform:translateY(-2px);color:var(--brand)}
.btn-outline-light{
  background:rgba(255,255,255,.06);color:#fff;padding:13px 24px;font-size:15px;
  border:1px solid rgba(255,255,255,.2);
}
.btn-outline-light:hover{border-color:var(--action);color:var(--action);transform:translateY(-2px)}

/* 分类页头 */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background-image:linear-gradient(180deg,rgba(23,15,32,.82),rgba(42,27,61,.9)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:56px 0 84px;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.55) 1px,transparent 1px);
  background-size:16px 16px;opacity:.05;
}
.page-hero .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:20px}
.crumb a{transition:color .2s}
.crumb a:hover{color:var(--action)}
.crumb .sep{opacity:.45}
.page-hero h1{
  color:#fff;font-size:clamp(28px,4vw,44px);font-weight:800;line-height:1.2;
  letter-spacing:.5px;max-width:860px;
}
.page-hero .lead{
  margin-top:18px;max-width:660px;font-size:16px;line-height:1.85;
  color:rgba(255,255,255,.8);
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.07);
  border-radius:var(--r-pill);padding:7px 15px;font-size:13px;color:rgba(255,255,255,.88);
}
.hero-tag i{color:var(--action);font-size:12px}

/* 数据徽章行 */
.stat-row{
  position:relative;z-index:3;margin-top:-46px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.stat-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 22px;box-shadow:var(--shadow);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 14px),calc(100% - 14px) 100%,0 100%);
  transition:transform .2s ease,box-shadow .2s ease;
}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.stat-card .stat-icon{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-size:17px;margin-bottom:14px;
}
.stat-card h3{font-size:17px;margin-bottom:8px}
.stat-card p{font-size:14px;color:var(--muted);line-height:1.75}
.stat-card .stat-tag{
  display:inline-block;margin-top:14px;font-size:12.5px;font-weight:700;letter-spacing:.4px;
  color:var(--accent);font-variant-numeric:tabular-nums;
}

/* 板块 */
.section{padding:56px 0}
@media(min-width:992px){
  .section{padding:88px 0}
}
.section-head{max-width:740px;margin-bottom:36px}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-soft);color:var(--brand);
  border-radius:var(--r-pill);padding:6px 14px;
  font-size:13px;font-weight:700;letter-spacing:.6px;
}
.section-head h2{font-size:clamp(24px,3vw,34px);margin:16px 0 12px}
.section-head p{font-size:15.5px;color:var(--muted)}
.section-dark{
  background:linear-gradient(160deg,var(--dark-1) 0%,var(--dark-2) 100%);
  color:rgba(255,255,255,.8);
}
.section-dark .section-head h2{color:#fff}
.section-dark .section-head p{color:rgba(255,255,255,.68)}
.section-dark .section-tag{background:rgba(34,224,184,.14);color:var(--action)}

/* 要点网格 */
.point-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.point-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 24px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.point-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:var(--brand-line)}
.point-icon{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-size:19px;margin-bottom:18px;
}
.point-card h3{font-size:19px;margin-bottom:10px}
.point-card p{font-size:14.5px;color:var(--muted);line-height:1.8}

/* 检查清单 */
.check-wrap{display:grid;grid-template-columns:1.45fr .95fr;gap:24px;align-items:start}
.check-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px 28px;box-shadow:var(--shadow);
}
.check-card h3{font-size:21px;margin-bottom:8px}
.check-card .sub{font-size:14.5px;color:var(--muted);margin-bottom:6px}
.check-list{display:grid;grid-template-columns:1fr 1fr;gap:14px 26px;margin-top:22px}
.check-list li{display:flex;gap:10px;font-size:15px;line-height:1.7}
.check-list li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;border-radius:2px;
  background:var(--accent);margin-top:10px;
}
.side-col{display:grid;gap:20px}
.figure-card{
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);
  background:var(--card);box-shadow:var(--shadow);
}
.figure-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.figure-card figcaption{padding:14px 18px;font-size:13.5px;color:var(--muted)}
.note-card{
  position:relative;overflow:hidden;border-radius:var(--r-card);padding:30px 26px;
  background:linear-gradient(160deg,#2A1B3D 0%,#170F20 100%);color:rgba(255,255,255,.82);
  clip-path:polygon(0 0,calc(100% - 16px) 0,100% 16px,100% 100%,0 100%);
}
.note-card h3{color:#fff;font-size:19px;margin-bottom:14px}
.note-card ul{display:grid;gap:12px}
.note-card li{display:flex;gap:10px;font-size:14.5px;line-height:1.75}
.note-card li i{color:var(--action);margin-top:7px;font-size:11px}

/* 编号列表 */
.rule-list{display:grid;gap:16px}
.rule-item{
  display:flex;gap:20px;align-items:flex-start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 26px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rule-item:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:var(--brand-line)}
.rule-num{
  flex:0 0 auto;width:40px;font-size:20px;font-weight:800;color:var(--accent);
  font-variant-numeric:tabular-nums;line-height:1.5;
}
.rule-body h3{font-size:17.5px;margin-bottom:6px}
.rule-body p{font-size:14.5px;color:var(--muted);line-height:1.8}

/* 引用块 */
.quote-block{
  margin-top:28px;border-left:4px solid var(--accent);background:#fff;
  border-radius:0 var(--r-card) var(--r-card) 0;padding:24px 26px;
  box-shadow:var(--shadow);font-size:15.5px;color:var(--text);line-height:1.9;
}
.quote-block strong{color:var(--brand)}

/* FAQ */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{
  background:var(--card);border:1px solid var(--brand-line);border-radius:var(--r-card);
  overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item[open]{border-color:rgba(58,31,92,.3);box-shadow:inset 3px 0 0 var(--brand),var(--shadow)}
.faq-q{
  display:flex;align-items:flex-start;gap:16px;
  padding:20px 22px;cursor:pointer;list-style:none;
  font-size:16.5px;font-weight:700;color:var(--heading);
}
.faq-q::-webkit-details-marker{display:none}
.faq-q .idx{font-variant-numeric:tabular-nums;color:var(--brand);opacity:.5;font-weight:800}
.faq-q .chev{margin-left:auto;color:var(--muted);font-size:13px;transition:transform .25s ease;margin-top:6px}
.faq-item[open] .faq-q .chev{transform:rotate(180deg)}
.faq-a{padding:0 24px 22px 62px;font-size:15px;color:var(--muted);line-height:1.9}

/* CTA 下载区 */
.cta-block{
  position:relative;overflow:hidden;border-radius:20px;
  background:linear-gradient(135deg,#2A1B3D 0%,#170F20 100%);
  padding:44px 40px;color:#fff;
  display:grid;grid-template-columns:1.15fr 1fr;gap:34px;align-items:center;
}
.cta-block::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:16px 16px;opacity:.05;
}
.cta-block > *{position:relative;z-index:2}
.cta-block h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:14px}
.cta-block p{font-size:15px;color:rgba(255,255,255,.72);line-height:1.85}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.dl-group{display:grid;gap:12px}
.dl-btn{
  display:flex;flex-direction:column;gap:2px;
  padding:13px 20px;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);
  color:#fff;transition:transform .2s ease,border-color .2s ease,background .2s ease;
}
.dl-btn strong{font-size:15px;font-weight:700}
.dl-btn span{font-size:12.5px;color:rgba(255,255,255,.66)}
.dl-btn:hover{transform:translateY(-2px);border-color:var(--action)}
.dl-btn.primary{background:var(--action);color:var(--action-ink);border-color:transparent;box-shadow:0 10px 26px rgba(34,224,184,.28)}
.dl-btn.primary span{color:rgba(14,42,36,.72)}
.dl-btn.primary:hover{filter:brightness(1.06);color:var(--action-ink)}
.cta-links{
  margin-top:26px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;
}
.cta-links a{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;color:rgba(255,255,255,.78);
  border:1px solid rgba(255,255,255,.16);border-radius:var(--r-pill);
  padding:7px 15px;transition:color .2s,border-color .2s;
}
.cta-links a:hover{color:var(--action);border-color:var(--action)}

/* 页脚 */
.site-footer{
  background:#1A1224;color:#9C93A8;
  padding:56px 0 0;margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.35fr;gap:34px;
  padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:18px;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;font-size:15px}
.footer-brand strong{font-weight:800;letter-spacing:.4px}
.site-footer p{font-size:14px;line-height:1.85;color:#9C93A8}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px}
.footer-links{display:grid;gap:11px}
.footer-links a{font-size:14px;color:#9C93A8;transition:color .2s}
.footer-links a:hover{color:var(--action)}
.footer-contact{display:grid;gap:13px;font-size:14px;line-height:1.7;color:#9C93A8}
.footer-contact i{color:var(--action);margin-right:9px;font-size:12px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  padding:20px 0;font-size:13px;color:#7C7290;
}

/* 移动端吸底下载条 */
.sticky-dl{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;height:56px;
  display:none;align-items:center;justify-content:space-between;gap:12px;
  padding:0 16px;background:rgba(23,15,32,.96);
  border-top:1px solid rgba(255,255,255,.1);
  transform:translateY(100%);transition:transform .3s ease;
}
.sticky-dl.show{transform:translateY(0)}
.sticky-dl .sticky-text{font-size:13.5px;color:rgba(255,255,255,.8);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sticky-dl .sticky-btn{
  flex:0 0 auto;background:var(--action);color:var(--action-ink);
  border-radius:var(--r-pill);padding:9px 20px;font-size:14px;font-weight:700;
}

/* 响应式 */
@media(max-width:1199.98px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px}
}
@media(max-width:991.98px){
  body{padding-bottom:56px}
  .nav-toggle{display:flex}
  .site-nav{flex-wrap:wrap;justify-content:space-between;padding:12px 0}
  .nav-links{
    flex-direction:column;align-items:stretch;gap:0;
    width:100%;margin:6px 0 0;
  }
  .nav-links .nav-link{padding:13px 4px;border-bottom:1px solid rgba(255,255,255,.08)}
  .nav-links .nav-link::after{display:none}
  .nav-links .nav-link.active{color:var(--action)}
  .nav-cta{width:100%;margin:16px 0 20px}
  .nav-cta .btn{width:100%}
  .stat-row{grid-template-columns:1fr 1fr;margin-top:-34px}
  .point-grid{grid-template-columns:1fr 1fr}
  .check-wrap{grid-template-columns:1fr}
  .cta-block{grid-template-columns:1fr;padding:34px 26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .sticky-dl{display:flex}
}
@media(max-width:767.98px){
  .page-hero{padding:40px 0 70px}
  .check-list{grid-template-columns:1fr}
  .faq-a{padding-left:24px}
}
@media(max-width:575.98px){
  .stat-row{grid-template-columns:1fr;margin-top:-26px}
  .point-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .check-card,.note-card{padding:24px 20px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
  .rule-item{padding:20px 18px;gap:14px}
  .page-hero h1{font-size:26px}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}